US998A - navy yard - Google Patents

Description

M.l P. MIX, OF U. S. NAVY YARD, YORK, N. Y.

STOll-."PEIR FOR CHAIN CABLES.

Specification of Letters Patent No. 998, dated November 3, 1838.

To all whom t may concern:

Be it known that I, M. P. MIX, commander in the Navy of the United States, have invented a new and Improved Stopper for Chain Cables to be Used on Board of Ships and other Vessels, which I denominate the Manger-stopper; and I do hereby declarethat the following is a full and eXact description thereof.

In the accompanying drawing Figure 1 is a part of the deck plan of a vessel, showing the manner in which the stopper may be located. Fig. 2 is a top view of the stopper, and Fig. 3 a side view. The other figures represent parts in detail, to be presently eX- plained.

The same numbers refer to similar parts in all the figures.

No. 5, Figs. 1 and 3, is a bit of tough oak to which the stopper is aliXed. It may be made about sixteen inches square, stepped into the deck below, with a check to the breast hook and a knee at the heel according to the roll and size of the ship.

No. 6 is a chock over which the cable ,y

passes on its way to the stopping apparatus. The front end of this chock is defended by a strong plate of cas-t iron c, a, Figs 2 and 3, which has a `groove b, Fig. 2, down the middle of it, for the edges of the links of the chain to pass through.

No. 2 is the upper vplate of the stopper, having a notch c in it through which the vertical link passes, and which catches the horizontal one. This is hinged, or attached by bolts and eyes, as shown at 4, 4, to No.

3, which is a strong slide, moving back and forth in grooves in stout iron checks 8, 8.

No. 1 is a screw, of which the cross bar 9 forms the nut; the end of this screw swivels in the slide 3 the opening at e, Fig. 4, being grooved slide and other permanent parts of the stopper are attached, this round opening passing also through the bit, No. 5. y Y

The slide, Fig. 4, hasa semicircular hollow at its end, so that when pressed up by the screw it does not obstruct the passage of the chain. This passage may at any time be rendered free by turning back the upper plate of the stopper, although the slide may be forced up against the chock.

I-Iaving thus fully described the construction of my manger chain stopper and also shown the manner in which Vit operates, I claim as my invention therein, and desire to secure by Letters Patent,

The combination of the slide with the upper plate of the stopper, constructed in the manner described and operated on by a screw as herein set forth, so as to stop or allow a free passage to a 'chain cable, and this I claim together with such variations thereof as will leave the general construction substantially the same.

M. P. MIX.

Witnesses:

ANN MIX, ISABELLA A. MIX.

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